The websites design and layout are either kept simple and almost “oldfashioned”, or often imitate the well-established designs and logos of well-known journals.
A lack of clear and transparent information about the peer review process, submission process or requested article processing charges.
The publisher’s name is not stated clearly on the website.
Contact details like telephone number and address turn out to be non-existant.
Predatory journals commonly use non-professional (free) email adresses (e.g. Gmail, Yahoo).
Authors are asked to send their manuscript by email and not through a professional online submission system.